Nonwoven fabric and process for making the same
AssigneeUni-Charm Corporation
InventorsToshio Kobayashi, Hideyuki Ishikawa, Satoshi Mitsuno
Life of this patent
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Abstract
A nonwoven fabric is formed with, in addition to crests of high fibers surface density and troughs of low fibers surface density extending in parallel one to another in one direction, bridge-like regions each extending transversely of this one direction between pair of the crest and the trough adjoining each other, and thereby enables a direction dependency of tensile strength and stretchability to be effectively alleviated.
Claims5
A nonwoven fabric having first and second surfaces and formed by component fibers mechanically entangled between said first and second surfaces, regions of high fibers surface density and regions of low fibers surface density continuously or intermittently extend in parallel one to another in one direction so as to be alternatively arranged in a direction transversely of said one direction and to form undulations defined by crests corresponding to said regions of high fibers surface density and troughs corresponding to said regions of low fibers surface density;
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- said nonwoven fabric further including bridge regions each extending transversely of said one direction between each pair of adjacent ones of said regions of high fibers surface density and said regions of low fibers surface density, said bridge regions having a density higher than that of said regions of low fibers surface density.
Dependencies are inferred from the claim text.